Rail bond



Feb. 5, 1929. 4 1,701,104

. H. H, FEBREY RAIL BOND Filed Jan. 23, 1924 d, C, H?

Patented Feb. 5," 1929.

UNITED STATES 1,701,104 PATENT OFFICE. 4

HAROLD H. FEBREY., OF NEWARK, NEW JERSEY, ASSIGNOR T THE AMERICAN STEEL AND WIREk COMPANY, OF NEW JERSEY, A CORPORATION 0F NEW JERSEY.

. s RAIL BOND.

Application led January 28, 1924. Serial No. 688,008.

This invention relates to rail bonds and more particularly torail bonds adapted to be secured to the railbywelding by either the electrioarc or gas flame methods.

One object ot this invention is to provide a y novel form of terminal for bonds of this class,

in which the parts are together.

Another objecti is to provide a bond having the novel combination, construction, and design of parts hereinafter described and illustrated in the accompanying drawings.

ln the drawings, Figure 1 is a side elevation ot a completed bond constructed in accordance with my invention and having the one terminal partly broken away.

Figures 2 and 3 are aside elevation and top plan, respectively, of the short length of standard tube from which the terminal sleeve is formed. l

Figures e and 5 are a side elevation and top plan, respectively, showing the same tubing expanded to conical shape.

Figure 61s a top plan ci the expanded tube olf Figures l and 5 flattened ready to receive the conductors.

Figures 7 and 8 area side elevation and top plan, respectively, of one term of wedge for clamping the bond body conductors within the sleeve.

Figures 9 and 10 are a top plan andan end view, respectively, of a slightly diderent term of wedge.

Figure 11 is a side elevation showing oneend ot a bond body inserted in a terminal sleeve with the wedge positioned ready to be forced together.

mechanically locked Figure 12 is atop plan of one of the as-` sembled bond terminals showing the indented portions for locking the sleeve and wedge in assembled position.

Figure 13 is also a top plan ot one of the assembled bond terminals, which has been squared, as required for some installations.

' Referring more particularly to the drawings, thel letter A designates the body of the bond as a whole, which is'composed of ilexible conductors 2 and 3 and B designates the terminals which are formed on each end of the body A.

The terminals B are each composed of a A tapered 'seamless sleeve 4, into which the ends of the conductors 2 and 3 are projected, and a wedge 5 which is fitted between the conductors 2 and 3 and forced into the sleeve so as to clamp the conductors against the sleeve and to increase the cross sectional area of the terminal.

The sleeves 4. are adapted to be formed from standard seamless steel or copper tubing cut to short lengths, as shown in Figures 2 and 3, and then expanded to form a tapered member such as shown in Figures 4 and 5 and linally flattened to the shape shown in Figure 6.

The wedge 5 of Figures 7 and 8 may be coinposed of either copper or-steel and may be cast or forged as desired. The wedge 5 is provided with flat side walls and concave end walls 7 and 8 adapted to fit around the conductors 2 and 3 of the body A.

After the wedge 5 has been positioned between the conductors 2 and 3 and wedge, conductors and sleeve #l all pressed or otherwise forced together, as shown in the completed bond, suitable indentations 9 and 10 are pref-l erably formed in the side walls of the sleeve 4 and wedge 5 to lock the assembled parts together. i

Tt will be noted that in the bond of Figure 1 the conductors 2 and 3 proj ect'slightl above the upper edge of the wedge 5 and s eeve 4. This construction provides a better bonding vconnection between the attaching metal and the terminal when the bond is welded to a rail. However the conductor ends vmay terminate even with or below the upper edge of the sleeve 4 if desired.

In Figure 13 the bond terminal has been squared after it was assembled by pressing it between suitable dies. This construction facilitates the attaching of the bond to the rail by welding according to some methods.

In Figures 9 and 10 a wedge is shown having an outwardly projecting flange 14 extending along one upper side edge, which flange is adapted to project beyond the sleeve 4 and serve as a spacing member to space the bond away from the rail to which it is attached.

Bonds constructed in accordance with this invention may be readily attached to the rails by either electric arc or gas llame welding,` and if steel sleeves and wedges are used a betterljoint may be formed than ifthey arel composed of copper, since the terminal and rail to which it"1s attached will be composed of like metal.

Due to the fact that the conductors 2 and 3 are separated by the wedge 5 they will be `spaced apart adjacent the lower end of the they enter the sleeve..

The "present invention provides a novel form of bond, the parts of which are meehanically secured against displacement and which is adapted to be further secured to-v ge'ther by `the Welding action of the att-aching metal when the bond is applied to a rail.

A rail bond adapted to be Welded to a rail, comprising a body portion composed of a plurality of round flexible conductors, and terminals formed on each end of said bodyportion, each of said terminals comprising a seamlesselongated sleeve into which the ends of said conductors project', said sleeve having its end Walls converging, and a metallic Wedge member having concave end walls which converge on an angle equal to the converging angle of the end Walls of said sleeve,

radius of the concavities in the end walls o 'saidwedge being equal to that of said conductors said Wedge member being forced into said sleeve between said conductors so as to have its concave end walls fitted around said conductors and force said conductors out,-

my hand.

HAROLD H. FEBREY.

`wardly against the converving .end Walls of n 

